Question

I am having problem with some regex expression, I need a regex to check whether the field is blank or not, if blank it should show a message “This field is required”.

I tried this regex but it doesn’t work.

allRules =  {"required":{
                        "regex":"none",
                        "alertText":"* This field is required",
                        "alertTextCheckboxMultiple":"* Please select an option",
                        "alertTextCheckboxe":"* This checkbox is required"},

It somehow only works only on textfield not textarea. Anyone can solve this? Thanks

UPDATE: Also, it must allow special chracters as such , and .

Answer 1

The regex /^$/ matches an empty string. The opposite, to check if a string is non-empty, is /./